Technical Details- Power Transformer
.png)
Power Transformer – Technical SpecificationsPower transformers are essential components in high-voltage transmission systems, enabling efficient bulk power transfer across long distances. Designed for durability, efficiency, and precision, they are tailored for grid substations, power plants, and critical infrastructure.
General Information|
Parameter
|
Specification
|
|---|---|
|
Type
|
Oil-Immersed (Standard), Dry-Type (Optional)
|
|
Rated Power
|
2.6 MVA to 20 MVA
|
|
Voltage Class
|
upto 33 kV
|
|
Frequency
|
50 Hz / 60 Hz
|
|
Phase
|
3-Phase (Standard), 1-Phase (Special Applications)
|
|
Standards
|
IS 2026, IEC 60076
|
.png)
Electrical & Mechanical Features|
Parameter
|
Details
|
|---|---|
|
Cooling Type
|
ONAN / ONAF / OFAF / OFWF / ODWF
|
|
Insulation Class
|
A or B (Oil), F or H (Dry-Type)
|
|
Vector Group
|
, Dyn11, YNd1, YNd11, Dd0, YNyn0
|
|
Efficiency
|
≥ 98.5%
|
|
Impedance
|
5% – 10% (based on rating)
|
|
Tap Changer
|
OLTC / OCTC (±10% to -26%)
|
|
Dielectric Strength (BIL)
|
75 kV – 250 kV (as per system voltage class)
|
Performance & Protection|
Parameter
|
Specification
|
|---|---|
|
Losses
|
As per IS / IEC / Customer Specification
|
|
Short-Circuit Withstand
|
As per IS / IEC / Customer Specification
|
|
Insulating Medium
|
Mineral Oil / Synthetic Ester / Silicone-Based
|
|
Protection Devices
|
Buchholz Relay, PRD, Surge Arresters, WTI, OTI, MOG
|
Applications- Power generation stations
- High-voltage substations
- Industrial power plants
- Renewable energy integration
- Transmission and sub-transmission grids
CONNECT WITH VOLTAMP®